Carton



Famed July 4, 195o Walter J. Tyr-seek.v Montville, Conn., Per Box v Co.,Inc., a corporation of Connecticut Robertson Pa Conn.,

assigner to Montville,

Application November 30, 1948, Serial No. 62.609 4 Claims. (Cl. 229-14)This invention relates to improvements in cartons.

More particularly, the invention is concerned with providing ashock-proof or cushioned receptacle for packaging bottles or likearticles, and

which may be made of pasteboard or like inex.

pensive material on existing automatic machinery. A

For a full understanding of the invention, a detailed description of thecontainer will now be given in connection with the accompanying drawingand the features forming the invention will then be specifically pointedout in the appended claims.

In the drawing:

Figure 1 is a flat view of the container blank;

Figure 2 is a view showing the completed container in collapsedcondition;

Figure 3 is a front elevation of the container with part of one wallbroken away to show the internal structure.

Figure 4 is a section on the line 4 4 of Figure 3; and

Figure 5 is a plan view on an enlarged scale of the container with thetop aps open.

'I'he blank comprises four generally rectangular panels I, 3, 5 and 1,adapted to form an outer box, an intermediate panel 9 and inner boxpanels II, I3, I5 and I'I. 'I'hese various panels are dispOSed in analigned series andare separated from each other by score lines 2, 4, 6,8. Il, I2, I4 and I6. An end flap I9 separated from the panel I1 byscore line I8 is also provided. Score lines I and I8 may be partiallycut through as at 29, to facilitate a sharper fold, and the score linesI2, I4 and I6 are interrupted by generally U-shaped cuts c definingoppositely facing projections or tabs 2| and 23. The blank includes alsotop flap elements 25, 21, 29 and 3|, bendable along the transverse scoreline 24, 26, 28, 30 and bottom flap elements 33, 35, 31, 39 and 4|bendable on the score lines 34, 36, 38, 4|I and 42. Score lines 2 to 20inclusive are referred to as longitudinal score lines for the reasonthat the blank in folding as hereinafter described will pass through thefolding machinery in parallelism to these score lines.

For convenience of reference, the surfaces which are uppermost in theblank as shown in Figure 1 will be referred to as the faces of thepanels, while the opposite surfaces will be referred to as the reversesthereof.

The container is designed for manufacture on a continuous roll-aroundprinciple and in the manner about to be described.

'Ihe irst fold occurs on the line I6, flap I9 and panel II beingfoldedover onto panels I5 and I3 and in face to face relation thereto. 'I'hereverse of terminal panel or flap I9 will have previously been preparedwith adhesive over the area indicated at A. The next fold occurs at lineI2, bringing the reverse of panels I'I and I9 over panelsfll and 9. Flap|9'is thus joined to panel I| by adhesive. I The next fold occurs online 9, bringing the reverse of panels I5 and I3 over the faces ofpanels l and 5. The last fold occurs on the line 4, bringing the facesof panels I and 3 over the folded structure and hence over the reverseof panels and 9. The reverse of panel 9 will previously have beenprepared with adhesive over the area indicated at B and will thus joinpanel 9 and panel I together. While the last fold occurs from left toright, as it is more convenient to handle two panels to the left of line4 in automatic folding machinery than to fold over the entire assemblyto the right of this line, it will be observed that the actual foldsimparted to the material are the same as though this last fold on theline 4 had been y made by folding the entire assembly to the rightthereof over, so that the collapsed box produced is folded continuouslyin one direction.

The container thus produced is shown in collapsed condition in Figure 2,in which the various panels are identified by reference numerals withthe suflix F Where the face of the panel is shown. and with the suiiix Rwhere the reverse is shown. The folding operation along score line I4will have separated the projections 23 and 2| along the U-shaped cutsdefining the same, projections 2| protruding from the edge of panel I3and projections 23 protruding from the edge of panel I5.

Panels II, I3, I5 and I1 will be somewhat narrower than the panels 3, 5,I and I, to which` they are juxtaposed in a completed box. The width ofpanel I3, including the projections 2| and 23 thereof, will equal thewidth of panel 5 apart from' the usual allowance for folding. Similarly,the width of panel I5, counting in the projections 2| and 23 thereon,will equal the'wdth of panel 1, while panel I'I, counting theprojections 23 thereon, will equal the width of panel 9. Again, apartfrom the folding allowance, panel 9 will be less in width than panel bythe width of a projection 23.

Pressure on the edges of the collapsed container of Figure 2 will openit into rectangular form in the usual way, so that when the bottom tabshave been folded and tucked in it presents the appear-` ance of Figures3, 4 and 5. As will be observed from those figures, panels Il, I3, l andI1 form an inner box spaced from the outer box, formed by the panels l,3, 5 and 1 and connecting panels thereon, by a distance equal to thewidth of the projections 2l, 23. Moreover, thisv spacing is maintainedby the projections. If now a bottle is inserted in thepackage, asindicated in phantom in Figure 4, it will,be held by thefinner box orsleeve, made up of panels il, I3, I5 and I1, in spaced relation to theouter wall of the box. I'his construction, in which an inner sleeve orcontainer spaced from the outer container and in I which the spacing ismaintained by the projections 2| and 23, furnishes protection equivalentto that usually afforded by a separate insert ofv corrugated board, andeliminates the assembly operations and expense, since the entire -conltainer, including the inner sleeve, is formed from a single blank byhigh speed and economical autoconveniently formed by means of the cutoutC and are most advantageously placed -at the fold lines between panels,projections formed by bendable portions of the inner box panels in otherways may be utilized where desired, without departing from the inventionin its broader aspects. It will also be noted that in certain cases theterminal panel l can be narrowed considerably, since this panel andpanel 9 fo'rm a double thickness wall across the major part of the widthof the box. Where such double thickness wall is unnecessary, panel-I canbe narrowed down so as to f become little more than a glueing ap capableof bridging the space between panel II and panel 3 and overlapping panele sufficiently to provide for an adhesive joint.

Provision for protecting the top or bottom of an article within thecontainer against shock may also be made and such provision is providedat the bottom of the box in the embodiment illustrated. Since the cap ofthe bottle, when inserted in the box of Figure 4, is at the topit mayreadily be made shock-resistant. Such provision is ordinarilyunnecessary at the top but may be provided where desired. The' bottom isrendered shock-proof by placing the lower edges of the panels to theright of fold line 8 and the transverse fold line 42 at a somewhathigher level than the fold line 40 and the bottoms-of panels I, 3, 5

and 1. Because of this formation of the blank,-

the completed container as shown in Figure 4, has an inner diagonalfalse bottom formed from the ap ll, upon which the bottle sits, thusspacing it from the bottom of the container and protecting it againstshock. This result can be achieved broadly by the elevation of the foldline 42 by comparison with the fold line 40 and transverse fold lines tothe left thereof, without correspondingly elevating the bottom edges ofthe adjacent panels, but the construction is more conveniently andeconomically constructed in the form in which shown.

What is claimed is:

1. A collapsible shock-proof box, rectangular in cross section. formedfrom a folded single blank,

comprising av series of ten successive panels inte- A grally connectedalong parallel fold lines to form inner and outer sleeves, the outersleeve comprisving five panels adjacent one end, with the rst panelglued to the outside face of the fifth panel, and the inner sleevecomprising five panels adjacent the other end, with the tenth panelglued to the inside face of the sixth panel, the inner sleeve panelsbeing narrower than the corresponding outer sleeve panels, spacedtherefrom and havingcuts along opposite sides of their fold linesforming oppositely facing projections of length corresponding to thedistance between the inner and outer sleeves, the inner sleeve beingsupported from the outer sleeve surrounding the same by means of thesaid projections andthe fold line between the ninth and tenth panelsbeing spaced inwardly on the sixthpanel from the foldline between thefifth and sixth panels.

2. A collapsible shock' proof box according to claim 1, comprising alsocrossed aps on the outer sleeve panels, forming an end sleeve.

3; A collapsible shock proof box according to claim 2, in which an innersleeve panel is shorter than the correspondingv outer sleeve panel andhas an end flap being in slanted position against the said end closureaps. 4. A collapsible shock-proof box rectangular in cross section,formed from a folded single blank,

comprising a seriesof at least ten successive panels integrallyconnected along parallel fold lines to form inner and outer spacedsleeves, the outer said first inner sleeve panel sleeve comprising atleast ve panels adjacent one end, with the rst panel glued to theoutside face of the iifth panel, and the inner sleeve comprising atleast five panels adjacent the other end including a first inner sleevepanel connecting the inner sleeve to the outer sleeve with the fifthinner sleeve panel vfixed in faced contact relatior throughout with,and.v held against the inside o.. the said connecting panel, the innersleeve panels being narrower than the corresponding outer sleeve panels,spaced therefrom and having cuts along opposite sides of their foldlines forming oppositely facing projections of length corresponding tothe distance between the inner and outer sleeves, the inner sleeve beingsupported l from the outer sleevesurrounding the same by means of thesaid projections and the fold line between the fourth and fifth innersleeve panels being spaced inwardly on the first -inner sleeve panelfrom the adjacenty fold line connecting the with the adjacent outersleeve panel. 1

' 'WALTER J. TYRSECK.

REFERENCES CITED The following references are of record in the ille 'ofthis patent:

UNITED STATES PATENTS 2,398,404 Brooks Q Apr. 16, 1946

